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ONEAC ONm 300 I - User Manual

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ON Series m UPS
ON Series m UPS User Instruction Manual 1
ON Series m
UPS
Please read and save these instructions. This manual
contains important instructions for the ON Series m
UPS family. Follow these instructions during the
unpacking, installation and maintenance of the
Uninterruptible Power Supply (UPS) and batteries.
If you have a problem with the UPS, please refer to
this manual before calling Technical Services. The
Troubleshooting Section starting on page 16
addresses most UPS-related issues.
Introduction
Thank you for selecting this uninterruptible power
supply (UPS). ONEAC’s ON Series offers the most
reliable protection from the harmful effects of
electrical line disturbances for your computing and
communications equipment. ONEAC’s ISO 9001
certification represents our commitment to building
world-class products. We take pride in every unit that
leaves our manufacturing facility
Technical
Support
ONEAC
®
offers 24-hour technical support. To
contact ONEAC Technical Services:
• North America: (800) 327-8801 (opt. 3) or
(847) 816-6000 (opt. 3)
• Europe: +44 (0) 2380 610311
• email: ts@oneac.com.
NOTE:
All calls received before 7 a.m. or after 7p.m.
Central Standard Time are forwarded to a cell
phone. An ONEAC Technical Support Representative
will return your call within one half hour between 5
p.m. and 10 p.m. Central Standard Time. Except for
emergencies, calls received between 10 p.m. and 7
a.m. will be returned during normal business hours.
Please check with ONEAC Technical Services
before attempting to repair or return any ONEAC
product. If an ONEAC unit needs repair or
replacement, ONEAC Technical Services issues a
Return Material Authorization (RMA) number along
with instructions on how to return the unit.

Table of Contents

Other manuals for ONEAC ONm 300 I

Preview: Instruction Manual
Instruction Manual25 pages

Questions and Answers

  • T
    Terry PenningtonAug 12, 2025
    What to do if ONEAC ONm 300 I will not turn on?
    • H
      hernandezcarolynAug 12, 2025
      If your ONEAC UPS won't turn on, there are several potential causes: * Ensure the front panel switch is in the “ON” (I) position. * Check if the UPS's input circuit breaker has tripped. If it has, reduce the load by unplugging devices and then press the circuit breaker in on the rear panel. * Verify the unit is properly plugged into a wall outlet.
  • J
    janicevalenzuelaAug 19, 2025
    Why does my ONEAC UPS operate on battery even with line voltage present?
    • S
      Stanley WatsonAug 19, 2025
      Your ONEAC UPS might be operating on battery even when line voltage is present due to a few reasons: * The UPS's input circuit breaker may have tripped. Try reducing the load by unplugging devices and then press the circuit breaker in on the rear panel. * There might be high or low line voltage. In this case, contact a qualified electrician. * The power source might be out of the frequency range. Check the UPS compatibility with your power source.
  • J
    Julie StewartAug 27, 2025
    What to do if the Fault LED is ON on my ONEAC ONm 300 I?
    • D
      Dennis OsbornAug 27, 2025
      If the Fault LED is ON on your ONEAC UPS, here's what you should do: * If the yellow LED is blinking, allow the batteries to charge for 4 hours. If the problem continues after charging, replace the battery(ies). * If the yellow LED is off or on solid, there is an internal UPS fault. Do not attempt to use the UPS. Turn the UPS off, unplug it from the power line, and call Technical Service: (800)-327-8801, opt. 3 immediately.
  • S
    Susan GentrySep 3, 2025
    What to do if the Fault LED is blinking on my ONEAC UPS?
    • S
      Suzanne HillSep 3, 2025
      If the Fault LED is blinking on your ONEAC UPS, consider these potential causes: * If the yellow LED is blinking, it could mean there's no battery connected or detected. Connect, install, or replace the battery(ies). * If the green LED is blinking or off, the output is overloaded. Reduce the load on the UPS until the LED goes out. If the green LED is off, recycle the power switch to reset.

ONEAC ONm 300 I Specifications

General IconGeneral
BrandONEAC
ModelONm 300 I
CategoryUPS
LanguageEnglish

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